Pulls real, human-made word-by-word lyrics from the lyric databases — picked by the song's language: LRCLIB + Musixmatch for Spanish/French/English & other Western, NetEase + KuGou for Chinese, PetitLyrics for Japanese — and matches them to this recording by duration. This is how proper KTV catalogs are made — far better than AI auto-sync. Pick the closest duration match.

Separates the vocals into a KTV instrumental, then time-aligns to the isolated vocals. Character-by-character times every glyph for a precise karaoke wipe. Character, line-anchored does the same but pins every line to the timestamps already in your Lyrics field — the lines can't drift, and alignment only has to solve the timing within each line; it needs line timestamps such as [00:12.06] (Apple's [012.142s] is accepted too). Line-by-line just times each line's start (lighter). The last two need the song's lyrics saved first. Runs in the background (~10–20 min) — you can close this window and come back.